234 A. LIVERSIDGE. 



On some NEW SOUTH WALES and other MINERALS. 



(Note No. 6.) 



By A. LlVERSIDGE, M.A., F.R.S., 



Professor of Chemistry in the University of Sydney. 



[_Uead before the Royal Society of N.8. Wales, December 2, 1891.'] 



Many of the specimens from Broken Hill, referred to in the follow- 

 ing notes and exhibited this evening, were collected by Mr. C. W. 

 Marsh of Broken Hill, and forwarded to me for identification and 

 description ; Mr. Marsh's Collection also contained a large 

 number of very interesting and characteristic rock specimens. 



Antimonite — Sulphide of Antimony. 

 From the Eleanora Mine, Hillgrove. The antimonite is in 

 the form of small nodules, in a soft brown shale or clay-like 

 matrix ; the nodules are about ^" to J" in diameter, and when 

 broken open present a beautiful radiate structure. 



Asbestos. 

 In calcium carbonate from the New Reform Gold Mine, Luck- 

 now. This mineral occurs in veins or masses apparently five or 

 six inches in thickness. It is of a white colour and fibrous 

 structure ; associated with it is some greenish steatite. The 

 specimen looks like a mass of somewhat fibrous steatite, but on 

 treatment with hydrochloric acid it almost entirely dissolves 

 with effervescence and leaves a slight residue of white fibrous 

 asbestos. 



The calcium carbonate is dense, compact, and shows no tendency 

 to cleave into rhombohedra. 



Bismuth — Native. 

 From Kingsgate, Glen Innes. Showing well-marked cleavage 

 forms, some of the faces are nearly one inch across. Associated 

 with quartz, bismuth carbonate and large crystals of molybdenite. 



